76 lines
1.7 KiB
JavaScript
76 lines
1.7 KiB
JavaScript
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/**
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* Copyright (c) 2014-present, Facebook, Inc.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*
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* @flow
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*/
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'use strict';
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const path = require('path');
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const ROOT = path.join(__dirname, '..');
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const BLACKLISTED_PATTERNS/*: Array<RegExp>*/ = [
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/.*\/__(mocks|tests)__\/.*/,
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/^Libraries\/Animated\/src\/polyfills\/.*/,
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];
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const WHITELISTED_PREFIXES/*: Array<string>*/ = [
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'IntegrationTests',
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'Libraries',
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'ReactAndroid',
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'RNTester',
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];
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const NAME_REDUCERS/*: Array<[RegExp, string]>*/ = [
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// extract basename
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[/^(?:.*\/)?([a-zA-Z0-9$_.-]+)$/, '$1'],
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// strip .js/.js.flow suffix
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[/^(.*)\.js(\.flow)?$/, '$1'],
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// strip .android/.ios/.native/.web suffix
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[/^(.*)\.(android|ios|native|web)$/, '$1'],
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];
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const haste = {
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/*
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* @return {string|void} hasteName for module at filePath; or undefined if
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* filePath is not a haste module
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*/
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getHasteName(
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filePath/*: string*/,
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sourceCode/* : ?string*/
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)/*: (string | void)*/ {
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if (!isHastePath(filePath)) {
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return undefined;
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}
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const hasteName = NAME_REDUCERS.reduce(
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(name, [pattern, replacement]) => name.replace(pattern, replacement),
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filePath
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);
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return hasteName;
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},
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};
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function isHastePath(filePath/*: string*/)/*: bool*/ {
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if (!filePath.endsWith('.js') && !filePath.endsWith('.js.flow')) {
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return false;
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}
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if (!filePath.startsWith(ROOT)) {
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return false;
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}
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filePath = filePath.substr(ROOT.length + 1);
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if (BLACKLISTED_PATTERNS.some(pattern => pattern.test(filePath))) {
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return false;
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}
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return WHITELISTED_PREFIXES.some(prefix => filePath.startsWith(prefix));
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}
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module.exports = haste;
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